Gunnar

Exactly. I put 87 in my car by accident once and it felt like such a dog, I didn't even get on it until I was able to get more good gas in it.

The previous owner of my car dyno'd it on 87 octane since that's all he used and it made a measly 152 whp stock. Black_SC's car by comparison doesn't seem to run 100% and put down I believe 178 whp with just exhaust.

vwynn

iTrader: (4)

ok so what is the optimal mph for mpg?

turbochris

JUst bought a 1994 LS400..........lol

i got 413 mile on one tank and then the gas light came on. But that was almost all highway at 80mph and the a/c on. i bet i could of got 450 out of it. But i just got it on friday morning so i am still getting used to it. That v8 has a little pull to it. Waxed a "riced out" honda's *** on the trip....hehe


chris w

CDY

I don't think mph matters so much as rpm. I usually keep it right above the 3k line for best mpg, which equals ~76mph on stock tire size.

vwynn

iTrader: (4)

o... i usally keep it at 65-70. i guess imma start driving faster then haha

SClean4

I was so low on gas last fill-up, my car started doing the whole sputtering/chug-chug-chug at the end, about to run out of of gas in the middle of turning left into the Kroger gas station. Luckily, I made it. Of course, since my gas tank was so low, it took me $45 to fill-up , up from my regular $40-42 per fill-up.

I need to seriously get some kind of cheap 3- or 4-cyl POS. Hybrids are looking very good to me right now and I see some kind of economical car in my future (as a second car, of course). It's just too bad hybrids are still somewhat expensive.

indo79

iTrader: (1)

Ha! I barely use my car in Chicago since I take the train to work, 500 miles the last 2 months.

Last fill up, 6.3 gallons on 72 miles

CDY

Yeah, my SC sucks at stop'n'go driving... I haven't hit the highway since my last fillup and I think I'm averaging ~17mpg right now

boostfedsx

my buddy's V8 gets more than my i6

5speed

My 5speed SC gets around 360 miles everytime before the light comes on and it usually takes 15 gallons to fill up. Do the math, 360/15 equals 24mpg. Sometimes I get a liitle less; around 23.

5speed

That's pretty sad your buddy's v8 gets more than your i6; Let me guess yours is an auto?

Gunnar

LS1 cars pull close to 30 mpg in stock or close to stock form, they're no joke.

CDY

The LSx has a really wide torque band, so it runs just fine at full-load around 1200rpm... that's why you can start a new z06 in 5th gear and take it all the way to 150+mph without shifting (and why 1st gear will take you to ~60mph)

http://youtube.com/watch?v=I6EiNFiLhV0

Black_SC

iTrader: (6)

yeaaa son...